package day22;

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int n = in.nextInt();
            int a = in.nextInt();
            int[] arr = new int[n];
            for(int i = 0; i < n; i++) {
                arr[i] = in.nextInt();
            }
            for(int i = 0; i < n; i++) {
                if(arr[i] <= a) {
                    a = a + arr[i];
                }else {
                    a = a + func(arr[i] , a);
                }
            }
            System.out.println(a);
        }
    }
    public static int func(int a ,int b) {
        int c;
        while((c = a % b) != 0) {
            a = b;
            b = c;
        }
        return b;



    }
}